1,720,963 research outputs found

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    La valutazione monetaria dei servizi ecosistemici marini: un’indagine sulle trezze nell’Alto Adriatico e i Millennials -

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    The aim of this paper is to explore the monetary value of marine ecosystem services provided by coralligenous habitats in the Adriatic sea. The paper describes the development of a contingent valuation survey and examines the perspective of Millennials. Even if this group of citizens presents environmental attitudes, external factors and individual characteristics may prevent effective environmental friendly behaviour. Prior academic research regarding monetary evaluation of coralligenous habitats has not focused on Millennials behaviour. We carried out the survey to a sample of 897 Italian students. The findings will be of interest to academic researchers, to institutional decision makers, and to people in general who are concerned with marine ecosystem services. This study encourages future empirical researches trying to refine and apply the finding to support decision makers in identifying management alternatives

    Italian Consumer Attitudes Towards Small Pelagic Fish

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    The paper intends to point out the characteristics of modern consumers' behavior and perception towards small pelagic fish and the knowledge of the product in terms of its nutritional elements, target market, structure of processing and marketing elements in order to evaluate types and quality of information available along the supply chain. The study aims at understanding the demand determinants, consumers'motivations and expectations in terms of quality, safety, health measures, traceability, availability and product innovation level. Qualitative analysis was used based on the focus groups method, administering a specific questionnaire on a territorial basis. The results indicate some strategies for commercial exploitation of small pelagic fish in order to enhance the level of quantitative and qualitative satisfaction of consumers' demand for these fish species
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